Home / 278,426,046.58-417,574,278.90-103,631,400.34

Finding the Fourth Proportional to 278,426,046.58, 417,574,278.90 and 103,631,400.34

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Solution

The fourth proportional to 278,426,046.58, 417,574,278.90 and 103,631,400.34 is: 155,422,985.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,426,046.58 : 417,574,278.90 = 103,631,400.34 : x
  2. Step 2: Convert to fraction form
    278,426,046.58/417,574,278.90 = 103,631,400.34/x
  3. Step 3: Cross multiply
    278,426,046.58x = 417,574,278.90 × 103,631,400.34
  4. Step 4: Simplify right side
    278,426,046.58x = 43,273,807,268,372,712
  5. Step 5: Solve for x
    x = 43,273,807,268,372,712/278,426,046.58
  6. Step 6: Final answer
    x = 155,422,985.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.